[1]} is created on a different strategy to perform the hierarchical computation. Specifically, an image is first partitioned into \(n\)  blocks and every four blocks are merged after a transformer layer. Moreover, Gradient-based Class-aware Tree-traversal is proposed to visualize the most critical path from child to root, which reveals how the model makes the decision given an input image. It is worth noting that NexT can be used to generate images by turning the tree upside down due to its tree structure.
